[GROOVY-7938] inconsistent access of methods in outer class

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.7
• Fix Version/s: 2.4.8
• Assignee: Paul King
• Reporter: Paul King
• Created: 14/Sep/16 03:24
• Updated: 01/Feb/17 23:19
• Resolved: 19/Sep/16 01:27

Description

Groovy handles access to outer instance and static methods from inner classes but not nested (i.e. static) ones. The following code illustrates the problem:

class Outer {
    static Integer fooCount = 0
    Integer barCount = 0
    static void incFoo() { fooCount++ }
    void incBar() { barCount++ }
    static class Nested {
        static void nestedIncFoo() { incFoo() }
    }
    Inner innerFactory() { new Inner() }
    class Inner { }
}

Outer.incFoo()
//Outer.Nested.nestedIncFoo() // => MME
assert Outer.fooCount == 1 // but should be 2 if no MME

new Outer().with {
    incBar()
    incFoo()
    innerFactory().with {
        incBar()
        incFoo()
    }
    assert barCount == 2
    assert fooCount == 3 // but should be 4 if no MME
}

After the fix, the following is expected to work:

class Outer {
    static Integer fooCount = 0
    Integer barCount = 0
    static void incFoo() { fooCount++ }
    void incBar() { barCount++ }
    static class Nested {
        static void nestedIncFoo() { incFoo() }
    }
    Inner innerFactory() { new Inner() }
    class Inner { }
}

Outer.incFoo()
Outer.Nested.nestedIncFoo()
assert Outer.fooCount == 2

new Outer().with {
    incBar()
    incFoo()
    innerFactory().with {
        incBar()
        incFoo()
    }
    assert barCount == 2
    assert fooCount == 4
}

Basically the commented out line should work.

Issue Links

• links to: GitHub Pull Request #421